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## Homework Statement

A mass of 0.3kg is suspended from a spring of stiffness 200Nm-1. If the mass is displaced by 10mm from its equalibrium position and released, for the resulting vibration calculate: The maximum velocity of the mass during the vibration.

## Homework Equations

v = Aωcos(wt+∅)

## The Attempt at a Solution

Now ω = 25.82cos.

so v = A 25.82cos (25.82t+∅)

So now i have to find A (amplitude) and t (displacement)

Is displacement the same as the amplitude?

Not sure on how to find the amplitude? Any guidance would be appreciated.